Heating furnace



April 22, 1924. 1,491,169 C. H. ROOT HEAT I NG FURNACE Filed May 22, )922' 5 Sheets-Sheet 2 1 April .22 1924. 1,491,169

c. H. ROOT HEATING FURNACE Filed May 22 M22 3 Sheets-Sheet 5 Patented Apr. 22, 1924.

CHARLES 1;..RODT, OF PABMA, OHIO.

HEATING- FURNACE.

Application filed May 22, 1922. Serial No. 562,816.

To all whom it may concern:

Be it known that 1, CHARLES H. Room, a citizen ofthe United States, residing at Parma, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Heating Furnaces, of which the following is a specification; I

This device was designed primarily for use in connection with a forge and upsetting machine in which'the ends of bolts and the like are first heated and'then upset to form thedesired shape of head.

'Heretofore, the services of two men have been required for this work, one to feed the bars of stockfto the forge and the other to'insert them into the upsetting or head forming machine. Bythe use of the device hereinafter described the employment of one man is eliminated and the work greatly facilitated. i Referring to the drawings:'

Figure liis a frontelevati'on of the devlce in connection with a forge and upsetting machine,'-parts of the latter being-"broken away. Fig. 2 is a diagrammatic elevation of the power actuatingmeans,mounted on and driven by the upsetting machine. Fig.

3 is a plan view with the hopper and hopper feeder-broken away. Fig. 4 is an elevation of the bar'discharge end ,of the forge. 'Fig. 5 is a vertical section on line5-5 of Fig-4f, showing the normal closed position ofthe forge discharge mechanism- Fig. 6 is a view similar to Fig. 5 showing the discharge position; Fig. 7 is an elevation ofthe feed end of' the forge parts being broken away. FigJS is a rear elevation of the forge discharge'mechanism. Fig. 9 is an enlarged elevation of aweight. Fig. 10 is a'section on 'line' 10'10 of Fig. 9. Fig. 11 is a perspective view of the hopper feeder.

The device consists generallyof a hopper structure "A, forge B and upsetting machine G. The hopper shown has a frame supporting near its top inclined angle irons 5-upon which are placed a supply of bars 6 previously outto the properlength. Adjacent to the rear angle iron 5 is a wall 7 against which the ends of rods 6 are piled. Adjustably mounted on frame A transversely above angle irons 5 is an angle iron 8, the space between said irons forming an outlet through which the rods 6 may roll out of the hopper on the irons 5 in rows three rods deep. Means for controlling the hop: per outlet and reducing the three rows to the one row desired for feeding to the forge and upsetting machine, is provided by a hopper feeder indicated at 9. The hopper feeder is mounted on frame A bymeans of a bracket 10. Pivotally carried by bracket 10 is a U-shaped feeding member 11 depending over runway 5 with clearance enough to allow one row of rods 6 to pass. A

weight 12 bolted to a depending extension on member 11 normally holds the latter in a perpendicular position. Two arms 13 are riveted to member 11 and extend outwardly and down toward the structure A. An upwardly extending extension on the near side of member 11 is provided whereby the feeder may be rocked by a rod15 connected to the top and extendingto a point convenient stated'the rods 6 run out of the hopper in rows three deep and when the feeder is rocked the arms 13 engage the top row of rods and reduce the row to two which roll to the U-shaped' member 11 and stop. Although the clearance between member '11 and runway 5 is sufficient for. the bottom to the reach of the operator. heretofore row to pass the latter is heldby the weight g and frictional engagement of. the top rov of rods. When the feeder-is rocked the member 11 holds the second row back allow" ing a few ofthe rods in the bottom row to be released and roll down runway 5 to the forge, their displacement being filled by the same number from the'second, row.

The ends of runway 5 are supported by an angle iron 16 bolted to the feed end of the forge B. The runway is continued thru the forge by a pipe 17 inset in bricks with only a portion of the upper surface exposed and a bar 18 onthe outside of the furnace bolted at one end on an angle iron 16 and at the other end on a similar angle iron 19. The bar 18 may be adjusted to vary the width of the furnace runway for different lengths of rods, extra bolt holes in the angles 16 and 19 being provided for this purpose. The rodrunway is continued from the discharge end of the forge to theupsetting machine by angle irons 2O bolted at one end on angle iron 19 and at the other onthe upsetting machine. The rod runway composed of angles 20, pipe 17, bar 18 and angles-5 P they pass through the furnace on pipe 17 and bar 18 are heated on the ends to be upset, said ends protruding into the fire chamber 21 of the furnace. The runway pipe 17 has a cold water supply 21 and sewerconnection 22 as the heat from the forge is very great at the point at which pipe 17 is laid and the runway must be continuously cooled to prevent corrosion of its exposed surface and thereby forming a rust or scale which would prevent the bars 6 from traveling freely. Two guards 22 and 23 are suitably mounted above the path of runways 17 and 18 to prevent the rods 6 from piling and jamming. A portion of guard 23 extends under the near edge of the top furnace bricks thereby supporting and strengthening the top ofthe forge.

The travel of the rods 6 through the furnace is controlled by a discharge mechanism indicated generally at 24, adjustably mounted on the discharge end 25 of the forge. The end 25 is provided with a horizontal slot '26 at the runway through which the rods may roll out of the forge. The discharge mechanism comprises two weights 27 and 28 slidably mounted in a box having a front 29 and back 30 bolted to a side 31 that is adjustably secured by bolts 40 to the inside of end 25. Rollers 33 for reducing friction co-operate with front 29, back 30 and side 31 to provide slides for weights 27 and 28 that depend from and are actuated by links 34 and 35 respectively, connected at their tops to levers 36 and 37 pivoted to a bracket 49 at 38. The other ends of the levers carry depending links 39 and 40 connected at their lower ends to a lever 41 pivoted at 42 on a bracket 48 bolted to the furnace end. Depending from the outer end of lever 41 is a link 43 connected to a foot pedal 44 pivoted at 45 to a rear forge or furnace leg. A spring 46 suspended from a bracket 47 bolted on a front leg, and secured to pedal 44, normally holds and retrieves the discharge mechanism to the positions shown in Figs. 4 and 5. Levers 36 and 37 are pivoted to an adjustable bracket 49 mounted on the outside of furnace end 25 and secured by bolts 40, the latter extending throughslots 41 in end wall 25, and screwing into side plate 31 of the discharge mechanism. The purpose of this adjustment will be described hereinafter.. The weight 28 has a cut out portion at its lower end into which is bolted an arm 50 made adjustable by different thicknesses of washers. Fig. 5 shows the normal position of the weights, weight 28 being down and the arm 50 lightly resting on runways 17 and 18 stopping the travel of the rods 6. When the heated rods are to be delivered to the upsetting machine, the pedal 44 is depressed, causing the system of levers and links to raise weight 28 and release the lower rods 6, simultaneously lowering weight 27 upon the rods thereby allowing one, two or three heated rods to escape as shown in Fig. 6, this depending upon the speed with which the operator may insert and form them on the upsetting machine. The number of rods released thus is regulated by adjusting the distance between the gripping edge formed by beveling the bottom of weight 27 and arm 50 by means of bolts 51 and different thicknesses of washers 52. The pedal 44 upon being retrieved by the spring returns the parts to their normal position again. A slot 53 in lower end of link 34 allows the weight 27 to engage rods 6 and hold them before the end rods are released by arm 50 and when pedal 44 is disengaged the slot allows the arm 50 to lower into position before weight 27 raises and releases the row of rods allowing them to come to rest against the arm 50 which automatically straightens the rods and corrects any tendency to run askew or out of the path of the runway. The drop of weights 27 and 28 may be regulated by screwing the eye bolts 27 and 28" and looking with their locknuts. The weights may be shifted transversely to center on the rods by loosening bolts 40 and 53 permitting them to slide in slots 41*, the bracket 49 moving also. Extra bolt holes in levers 36 and 37 are provided to take up the adjustment with the depending links as will be apparent from the drawings.

The forge or furnace discharge mecha nism may be power actuated as shown in the drawings by a link 54 connected to pedal 44 and a bell crank lever 55 rocked by a bar 56 that is reciprocated by a striking pin 57 on a wheel 58 driven by a belt 59 and pulley 60 on the shaft of the upsetting machine as shown diagrammatically in Fig. 2. The timing of the discharge mechanism may be varied by changing the ratios of the wheel 58 and pulley 60. The rod 15 may be suitably connected to the upsetterfor actuating the hopper feeder.

It is obvious that many changes may be made in the above described mechanism without departing from the spirit of the invention and the scope of the appended claims.

' I claim:

1. A heating furnace having a runway on one side wall thereof and a slot into the top of the furnace beside said runway, for

the purpose described, said runway having a hollow water-cooled rail at the under side of said slot.

2. The combination with a furnace having a runway along the same, upon which articles may travel while being heated by the furnace, of an escapement mechanism at the end of the runway, controlling the feeding of said articles along the runway, an upsetting machine, and an automatic operating connection between the upsetting machine and the escapement mechanism.

3. The combination with a furnace having a runway along the same, upon which articles may travel while being heated by the furnace, of an escapement mechanism at the end of the runway, controlling the feeding of said articles along the runway, said mechanism including a pair of plungers movable up and down alternately in opposite directions, into and out of engagement with said articles, for the purpose described, levers connected to said plungers, a treadle, and adjustable connections between the treadle and the levers to vary the lift of the plungers.

4. The combination with a heating furnace having a runway along which articles may travel while being heated in the furnace, of a feeding device leading to the inlet end of said runway, for supply articles thereto, an escapement mechanism at the outlet end of said runway, to control the delivery of said articles therefrom, a machine to which the articles are delivered, and

means automatically actuated by said machine to operate the escapement mechanism in time therewith.

In testimony whereof, I aflix my signature in presence of two witnesses.

CHARLES H. ROOT. Witnesses:

JOHN A. BOMMHARDT, Bnssm F. POLLAK. 

